US 12,257,536 B2
Heat activated adhesive for filters that may contain multiple elements
Farrell F. Calcaterra, Kearney, NE (US); Charles Wick, Pleasanton, NE (US); Simon Ritchie, Kearney, NE (US); and David Duryea, Franklin, TN (US)
Assigned to Baldwin Filters, Inc., Cleveland, OH (US)
Filed by Baldwin Filters, Inc., Cleveland, OH (US)
Filed on Aug. 17, 2022, as Appl. No. 17/889,566.
Application 17/889,566 is a continuation of application No. PCT/US2021/022961, filed on Mar. 18, 2021.
Claims priority of provisional application 63/076,597, filed on Sep. 10, 2020.
Claims priority of provisional application 63/005,648, filed on Apr. 6, 2020.
Prior Publication US 2022/0387914 A1, Dec. 8, 2022
Int. Cl. B29C 65/00 (2006.01); B01D 25/02 (2006.01); B01D 39/00 (2006.01); C09J 5/06 (2006.01); C09J 7/35 (2018.01); C09J 163/00 (2006.01); C09J 175/04 (2006.01); B29C 65/48 (2006.01); B29C 65/54 (2006.01); B29C 65/70 (2006.01)
CPC B01D 39/00 (2013.01) [B01D 25/02 (2013.01); C09J 5/06 (2013.01); C09J 7/35 (2018.01); C09J 163/00 (2013.01); C09J 175/04 (2013.01); B01D 2201/127 (2013.01); B01D 2201/291 (2013.01); B01D 2239/083 (2013.01); B29C 65/4815 (2013.01); B29C 65/4835 (2013.01); B29C 65/54 (2013.01); B29C 65/70 (2013.01); C09J 2301/304 (2020.08)] 28 Claims
OG exemplary drawing
 
1. A method of manufacturing a filter element comprising:
placing at least one heat activated disk between ends of two tubular filter media element segments; and
heating the at least one heat activated disk and embedding the two tubular filter media element segments therein.